Macquarie's analyst rating for Lenovo Group is based on the company's recent results indicating a structural inflection point, with its Infrastructure Solutions Group (ISG) returning to profitability due to rising demand for AI and traditional servers. The firm believes that AI server demand will continue to exceed supply, leading to strong revenue growth and margin expansion for ISG. Additionally, improvements in server pricing and market share, driven by tight memory supply, support the view that the recent share price increase marks the start of a valuation re-rating cycle. The analyst also highlighted a significant increase in Lenovo's AI server pipeline, providing strong earnings visibility, and expects the company to gain market share in the high-end segment with upcoming product deliveries.